[sldev] Re: Commercial CAVEs / stereoscopic displays

[George Williams]

Regarding DLP and Stereo and SL...

If anyone is interested ( and in Las Vegas for CES this week ), I will be
showing SL in stereo on a SamSung DLP Stereo-enabled HDTV.  Interaction via
Wii.  Just swing by the TI booth starting Tuesday.

I apologize for the shameless plug :)

-George

On Jan 6, 2008 7:25 PM, Mark Dubin <mark at 3demb.com> wrote:

> Hi Folks,
>
> Dale Mahalko wrote on Jan 5, 2008 a note about stereo display of SL:
>
> > (clip)
> > Has anyone tried using SL with CAVEs like this yet? (I expect a person
> > would need to either be insanely rich or have access to a well-funded
> > university to do it.)
> > (clip)
>
>
> When my University had a CAVE a few years ago (now closed) we
> successfully viewed many scenes basically similar to parts of SL
> SIMs. I am now retired, and managing partner is a small startup (3D
> Embodiment, LLC, http://3demb.com) that provides immersive 3D
> displays in real life, and that is developing content in SL on our
> Embodiment Island. In part, we are investing in SL because we were
> aware that viewing it in stereo was coming.
>
> The references Dale gave to BARCO reflect what is available from a
> number of commercial firms, at relatively high cost. For example, a
> vender of interest is Fakespace (http://www.fakespace.com).
>
> However, one does not need a full-fledged, multi-walled CAVE to get
> the benefit of human-scale immersive visualization type, virtual
> reality. A more affordable solution is the GeoWall (http://
> geowall.geo.lsa.umich.edu/intro.html) type system. I like to think
> of this as essentially a one-wall cave (bordering on being an
> oxymoron). It is a single screen that reproduces the front wall of a
> CAVE at whatever size one chooses to use. Installation can be
> permanent (I still do research at our lab using ceiling mounted
> projectors and an 8' X 11' front-projection screen) or portable, such
> as the setup my company uses for demonstrations on a 5' X 8' portable
> screen. I can report that stereo SL looks very good on this portable
> setup.
>
> A Geowall system is "relatively" low cost. You need: two DLP
> projectors, a polarization retaining screen, polarizing filters and
> glasses, and a normal PC with a good two-headed graphics card (we use
> Nvidia Quadro cards, FX-3450 or better). Starting from scratch, a
> very good system can be build for about $7,000 (or less). The GeoWall
> website has lots of details, and I will be happy to provide more info
> to anyone who wants it. With advances in projector technology and
> decreasing prices, I think a system could be built even more cheaply
> in the coming year.
>
> "Threedee Shepherd"/Mark Dubin
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